I'm buggered - Spent the rainy day stripping the 750 to the bear frame. Cut off the offending motor mounts and centre stand mounts, ground excess back to the bone, all nice and clean for the new mounts to be made up once the Redax 880SF motor is temperalay in place, to mark out the templates for the new mounts.
Was relieved to see, what I thought, was a broken top head stem bearing race (SV1000 donor), wasn't.
While I had the grinder and flap wheels out, I removed the crude baffle DPO fitted to the SFC 'muffler' I had tucked away.
I've got to buy me one of those hydraulic bike lifts, my bones are fucking killing me from bending down all day.